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Alba shared a photograph of the newborn on social media on Monday, reports dailymail.co.uk. "12/31/17. Best gift to ring in the New Year! Cash (Warren) and I feel so blessed. Haven and Honor are already obsessed with their new baby bro," Alba wrote alongside the image. The image accompanying the message showed Hayes sleeping, wearing scratch mitts and a white onesie.
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Warren, who is a film producer, was equally proud and shared another image, which sees him cradling his son. He wrote: "Hayes Alba Warren: You sure know how to ring in the New Year! You showed up a few days early but we couldn't be any happier. Your mamma is the strongest woman I know... You're so lucky to have her by your side. You have two amazing sisters who already adore you and I know you'll be thankful to have them guide the way."